[compiler-rt][asan][tests] Reland: Stabilize wchar tests on Darwin/Android (test-only)

Reland of llvm#161624; depends on revert llvm#162001.

- Android: keep %env_asan_opts=log_to_stderr=1.
- Darwin: use CHECK-DAG for the pre-crash marker and header; frame line matches function only.
- Common: reuse [[ADDR]].

NFC: test-only.

Signed-off-by: Yixuan Cao <[email protected]>

Author: Cao-Wuhui

compiler-rt/test/asan/TestCases/wcscat.cpp

@@ -16,10 +16,10 @@ int main() {
   wchar_t badDst[9];
   wcscpy(badDst, start);
   fprintf(stderr, "Good so far.\n");
-  // CHECK: Good so far.
+  // CHECK-DAG: Good so far.
   fflush(stderr);
   wcscat(badDst, append); // Boom!
-  // CHECK: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
+  // CHECK-DAG: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
   // CHECK: WRITE of size {{[0-9]+}} at [[ADDR]] thread T0
   // CHECK: #0 {{0x[0-9a-f]+}} in wcscat
   printf("Should have failed with ASAN error.\n");

compiler-rt/test/asan/TestCases/wcscpy.cpp

@@ -13,10 +13,10 @@ int main() {
 
   wchar_t badDst[7];
   fprintf(stderr, "Good so far.\n");
-  // CHECK: Good so far.
+  // CHECK-DAG: Good so far.
   fflush(stderr);
   wcscpy(badDst, src); // Boom!
-  // CHECK: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
+  // CHECK-DAG: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
   // CHECK: WRITE of size {{[0-9]+}} at [[ADDR]] thread T0
   // CHECK: #0 {{0x[0-9a-f]+}} in wcscpy
   printf("Should have failed with ASAN error.\n");

compiler-rt/test/asan/TestCases/wcsncat.cpp

@@ -17,10 +17,10 @@ int main() {
   wcscpy(badDst, start);
   wcsncat(badDst, append, 1);
   fprintf(stderr, "Good so far.\n");
-  // CHECK: Good so far.
+  // CHECK-DAG: Good so far.
   fflush(stderr);
   wcsncat(badDst, append, 3); // Boom!
-  // CHECK: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
+  // CHECK-DAG: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
   // CHECK: WRITE of size {{[0-9]+}} at [[ADDR]] thread T0
   // CHECK: #0 {{0x[0-9a-f]+}} in wcsncat
   printf("Should have failed with ASAN error.\n");

compiler-rt/test/asan/TestCases/wcsncpy.cpp

@@ -14,11 +14,11 @@ int main() {
   wchar_t badDst[7];
   wcsncpy(badDst, src, 7); // This should still work.
   fprintf(stderr, "Good so far.\n");
-  // CHECK: Good so far.
+  // CHECK-DAG: Good so far.
   fflush(stderr);
 
   wcsncpy(badDst, src, 15); // Boom!
-  // CHECK: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
+  // CHECK-DAG: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}}
   // CHECK: WRITE of size {{[0-9]+}} at [[ADDR]] thread T0
   // CHECK: #0 {{0x[0-9a-f]+}} in wcsncpy
   printf("Should have failed with ASAN error.\n");