Fix some escaping and quoting in RUN lines, mainly involving { and <. In two

cases quoting of <{ didn't work out, so I changed the grep to check for }>
instead.

This fixes 7 testcases that were not properly running before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52182 91177308-0d34-0410-b5e6-96231b3b80d8

test/Linker/2003-10-21-ConflictingTypesTolerance.ll

@@ -1,6 +1,6 @@
 ; RUN: llvm-as < %s > %t.out1.bc
 ; RUN: echo { %S = type \[8 x i32\] external global %S } | llvm-as > %t.out2.bc
-; RUN: llvm-link %t.out1.bc %t.out2.bc | llvm-dis | grep %S | grep \{
+; RUN: llvm-link %t.out1.bc %t.out2.bc | llvm-dis | grep %S | grep {\\{}
 
 %S = type { i32 }
 

test/Linker/2004-12-03-DisagreeingType.ll

@@ -1,7 +1,7 @@
 ; RUN: echo {@G = weak global \{\{\{\{double\}\}\}\} zeroinitializer } | \
 ; RUN:   llvm-as > %t.out2.bc
 ; RUN: llvm-as < %s > %t.out1.bc
-; RUN: llvm-link %t.out1.bc %t.out2.bc | llvm-dis | not grep {\}}
+; RUN: llvm-link %t.out1.bc %t.out2.bc | llvm-dis | not grep {\\}}
 
 ; When linked, the global above should be eliminated, being merged with the 
 ; global below.