[ASan] create separate configs for running ASan lit tests in both 32- and 64-bit mode. Clean up RUN-lines in tests.

llvm-svn: 183498
diff --git a/compiler-rt/lib/asan/lit_tests/TestCases/initialization-bug.cc b/compiler-rt/lib/asan/lit_tests/TestCases/initialization-bug.cc
index ee2c725..91fe7db 100644
--- a/compiler-rt/lib/asan/lit_tests/TestCases/initialization-bug.cc
+++ b/compiler-rt/lib/asan/lit_tests/TestCases/initialization-bug.cc
@@ -1,11 +1,7 @@
 // Test to make sure basic initialization order errors are caught.
 
-// RUN: %clangxx_asan -m64 -O0 %s %p/Helpers/initialization-bug-extra2.cc -o %t
-// RUN: ASAN_OPTIONS=check_initialization_order=true %t 2>&1 \
-// RUN:    | %symbolize | FileCheck %s
-// RUN: %clangxx_asan -m32 -O0 %s %p/Helpers/initialization-bug-extra2.cc -o %t
-// RUN: ASAN_OPTIONS=check_initialization_order=true %t 2>&1 \
-// RUN:     | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -O0 %s %p/Helpers/initialization-bug-extra2.cc -o %t
+// RUN: ASAN_OPTIONS=check_initialization_order=true %t 2>&1 | %symbolize | FileCheck %s
 
 // Do not test with optimization -- the error may be optimized away.