Fix the remaining TCL-style quotes found in the testsuite. This is

another mechanical change accomplished though the power of terrible Perl
scripts.

I have manually switched some "s to 's to make escaping simpler.

While I started this to fix tests that aren't run in all configurations,
the massive number of tests is due to a really frustrating fragility of
our testing infrastructure: things like 'grep -v', 'not grep', and
'expected failures' can mask broken tests all too easily.

Essentially, I'm deeply disturbed that I can change the testsuite so
radically without causing any change in results for most platforms. =/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159547 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/GVN/basic.ll

@@ -1,4 +1,4 @@
-; RUN: opt < %s -gvn -S | not grep {%z2 =}
+; RUN: opt < %s -gvn -S | not grep "%z2 ="
 
 define i32 @main() {
 block1: