Fix up other code comment instances of insur* -> ensur*

Author: bchavez

docs/design/coreclr/botr/readytorun-overview.md

@@ -117,7 +117,7 @@ To allow changes in the runtime, we simply require that the new runtime handle a
 
 ### Restrictions on Runtime Evolution
 
-As mentioned previously, when designing for version compatibility we have the choice of either simply disallowing a change (by changing the breaking change rules), or insuring that the format is sufficiently flexible to allow evolution. For example, for managed code we have opted to disallow changes to value type (struct) layout so that codegen for structs can be efficient. In addition, the design also includes a small number of restrictions that affect the flexibility of evolving the runtime itself. They are:
+As mentioned previously, when designing for version compatibility we have the choice of either simply disallowing a change (by changing the breaking change rules), or ensuring that the format is sufficiently flexible to allow evolution. For example, for managed code we have opted to disallow changes to value type (struct) layout so that codegen for structs can be efficient. In addition, the design also includes a small number of restrictions that affect the flexibility of evolving the runtime itself. They are:
 
 - The field layout of `System.Object` cannot change. (First, there is a pointer sized field for type information and then the other fields.)
 - The field layout of arrays cannot change. (First, there is a pointer sized field for type information, and then a pointer sized field for the length. After these fields is the array data, packed using existing alignment rules.)

src/coreclr/debug/ee/rcthread.cpp

@@ -610,7 +610,7 @@ void DebuggerRCThread::ThreadProc(void)
     // This message actually serves a purpose (which is why it is always run)
     // The Stress log is run during hijacking, when other threads can be suspended
     // at arbitrary locations (including when holding a lock that NT uses to serialize
-    // all memory allocations).  By sending a message now, we insure that the stress
+    // all memory allocations).  By sending a message now, we ensure that the stress
     // log will not allocate memory at these critical times an avoid deadlock.
     {
         SUPPRESS_ALLOCATION_ASSERTS_IN_THIS_SCOPE;

src/coreclr/dlls/mscorpe/pewriter.cpp

@@ -1185,7 +1185,7 @@ HRESULT PEWriter::link() {
     // NOTE:
     // link() can be called more than once!  This is because at least one compiler
     // (the prejitter) needs to know the base addresses of some segments before it
-    // builds others. It's up to the caller to insure the layout remains the same
+    // builds others. It's up to the caller to ensure the layout remains the same
     // after changes are made, though.
     //
 

src/coreclr/ilasm/assem.cpp

@@ -328,7 +328,7 @@ BOOL Assembler::AddMethod(Method *pMethod)
     unsigned codeSize = m_CurPC;
     unsigned codeSizeAligned = codeSize;
     if (moreSections)
-        codeSizeAligned = (codeSizeAligned + 3) & ~3;    // to insure EH section aligned
+        codeSizeAligned = (codeSizeAligned + 3) & ~3;    // to ensure EH section aligned
 
     unsigned headerSize = COR_ILMETHOD::Size(&fatHeader, moreSections);
     unsigned ehSize     = COR_ILMETHOD_SECT_EH::Size(pMethod->m_dwNumExceptions, pMethod->m_ExceptionList);

src/coreclr/inc/ceegen.h

@@ -275,7 +275,7 @@ class CCeeGen : public ICeeGenInternal {
     // Write the metadata in "emitter" to the default metadata section is "section" is 0
     // If 'section != 0, it will put the data in 'buffer'.  This
     // buffer is assumed to be in 'section' at 'offset' and of size 'buffLen'
-    // (should use GetSaveSize to insure that buffer is big enough
+    // (should use GetSaveSize to ensure that buffer is big enough
     virtual HRESULT emitMetaData(IMetaDataEmit *emitter,
                         CeeSection* section=0, DWORD offset=0, BYTE* buffer=0, unsigned buffLen=0);
     virtual HRESULT getMethodRVA(ULONG codeOffset, ULONG *codeRVA);

src/coreclr/inc/cordebug.idl

@@ -5180,7 +5180,7 @@ interface ICorDebugNativeFrame : ICorDebugFrame
      * coherent state.  (Note that even if the frame is in a valid
      * state as far as the runtime is concerned, there still may be
      * problems - e.g. uninitialized local variables, etc.  The caller
-     * (or perhaps the user) is responsible for insuring coherency of
+     * (or perhaps the user) is responsible for ensuring coherency of
      * the running program.)
      *
      * Calling SetIP immediately invalidates all frames and chains for the

src/coreclr/inc/iceefilegen.h

@@ -149,7 +149,7 @@ class ICeeFileGen {
     // Emit the metadata from "emitter".
     // If 'section != 0, it will put the data in 'buffer'.  This
     // buffer is assumed to be in 'section' at 'offset' and of size 'buffLen'
-    // (should use GetSaveSize to insure that buffer is big enough
+    // (should use GetSaveSize to ensure that buffer is big enough
     virtual HRESULT EmitMetaDataAt (HCEEFILE ceeFile, IMetaDataEmit *emitter,
                                     HCEESECTION section, DWORD offset,
                                     BYTE* buffer, unsigned buffLen);

src/coreclr/jit/codegencommon.cpp

@@ -4963,7 +4963,7 @@ void CodeGen::genFinalizeFrame()
 
     // We currently only expect to push/pop consecutive FP registers
     // and these have to be double-sized registers as well.
-    // Here we will insure that maskPushRegsFloat obeys these requirements.
+    // Here we will ensure that maskPushRegsFloat obeys these requirements.
     //
     if (maskPushRegsFloat != RBM_NONE)
     {

src/coreclr/jit/instr.cpp

@@ -750,7 +750,7 @@ void CodeGen::inst_RV_SH(
 #elif defined(TARGET_XARCH)
 
 #ifdef TARGET_AMD64
-    // X64 JB BE insures only encodable values make it here.
+    // X64 JB BE ensures only encodable values make it here.
     // x86 can encode 8 bits, though it masks down to 5 or 6
     // depending on 32-bit or 64-bit registers are used.
     // Here we will allow anything that is encodable.

src/coreclr/pal/tests/palsuite/common/palsuite.cpp

@@ -154,7 +154,7 @@ mkAbsoluteFilenameW (
     sizeFN = wcslen( fileName );
     sizeAPN = (sizeDN + 1 + sizeFN + 1);
 
-    /* insure ((dirName + DELIM + fileName + \0) =< _MAX_PATH ) */
+    /* ensure ((dirName + DELIM + fileName + \0) =< _MAX_PATH ) */
     if ( sizeAPN > _MAX_PATH )
     {
 	return ( 0 );
@@ -195,7 +195,7 @@ mkAbsoluteFilenameA (
     sizeFN = strlen( fileName );
     sizeAPN = (sizeDN + 1 + sizeFN + 1);
 
-    /* insure ((dirName + DELIM + fileName + \0) =< _MAX_PATH ) */
+    /* ensure ((dirName + DELIM + fileName + \0) =< _MAX_PATH ) */
     if ( sizeAPN > _MAX_PATH )
     {
         return ( 0 );