refacto(tests): moved folder and combined test files when possible

Author: theomagellan

clang/test/Driver/windows-Wpadded-alignas.cpp

@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -triple x86_64-windows-msvc -fsyntax-only -verify -Wpadded %s
+
+struct __attribute__((ms_struct)) BitfieldStruct { // expected-warning {{padding size of 'BitfieldStruct' with 3 bytes to alignment boundary}}
+  char c : 1;
+  int : 0; // expected-warning {{padding struct 'BitfieldStruct' with 31 bits to align anonymous bit-field}}
+  char i;
+};
+
+int main() {
+  BitfieldStruct b;
+}

clang/test/Driver/windows-Wpadded-anonymous-bitfield.cpp

@@ -0,0 +1,40 @@
+// RUN: %clang_cc1 -triple x86_64-windows-msvc -fsyntax-only -verify -Wpadded %s
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify -Wpadded %s
+
+struct __attribute__((ms_struct)) Foo { // expected-warning {{padding size of 'Foo' with 3 bytes to alignment boundary}}
+  int b : 1;
+  char a; // expected-warning {{padding struct 'Foo' with 31 bits to align 'a'}}
+};
+
+struct __attribute__((ms_struct)) AlignedStruct { // expected-warning {{padding size of 'AlignedStruct' with 4 bytes to alignment boundary}}
+  char c;
+  alignas(8) int i; // expected-warning {{padding struct 'AlignedStruct' with 7 bytes to align 'i'}}
+};
+
+
+struct Base {
+  int b;
+};
+
+struct Derived : public Base { // expected-warning {{padding size of 'Derived' with 3 bytes to alignment boundary}}
+  char c;
+};
+
+union __attribute__((ms_struct)) Union {
+  char c;
+  long long u;
+};
+
+struct __attribute__((ms_struct)) StructWithUnion { // expected-warning {{padding size of 'StructWithUnion' with 6 bytes to alignment boundary}}
+  char c;
+  int : 0;
+  Union t; // expected-warning {{padding struct 'StructWithUnion' with 7 bytes to align 't'}}
+  short i;
+};
+
+int main() {
+  Foo f;
+  AlignedStruct a;
+  Derived d;
+  StructWithUnion swu;
+}