Reland 3: [analyzer] NFC: Update test infrastructure to support multiple constraint managers

Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.

Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin

Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits

Differential Revision: https://reviews.llvm.org/D30373

llvm-svn: 296837
diff --git a/clang/test/Analysis/malloc-overflow2.c b/clang/test/Analysis/malloc-overflow2.c
index 83a2c02..2e1b1d4 100644
--- a/clang/test/Analysis/malloc-overflow2.c
+++ b/clang/test/Analysis/malloc-overflow2.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple x86_64-unknown-unknown -analyze -analyzer-checker=alpha.security.MallocOverflow,unix -verify %s
+// RUN: %clang_analyze_cc1 -triple x86_64-unknown-unknown -analyzer-checker=alpha.security.MallocOverflow,unix -verify %s
 
 typedef __typeof__(sizeof(int)) size_t;
 extern void *malloc(size_t);