Convert all tests using TCL-style quoting to use shell-style quoting.

This was done through the aid of a terrible Perl creation. I will not
paste any of the horrors here. Suffice to say, it require multiple
staged rounds of replacements, state carried between, and a few
nested-construct-parsing hacks that I'm not proud of. It happens, by
luck, to be able to deal with all the TCL-quoting patterns in evidence
in the LLVM test suite.

If anyone is maintaining large out-of-tree test trees, feel free to poke
me and I'll send you the steps I used to convert things, as well as
answer any painful questions etc. IRC works best for this type of thing
I find.

Once converted, switch the LLVM lit config to use ShTests the same as
Clang. In addition to being able to delete large amounts of Python code
from 'lit', this will also simplify the entire test suite and some of
lit's architecture.

Finally, the test suite runs 33% faster on Linux now. ;]
For my 16-hardware-thread (2x 4-core xeon e5520): 36s -> 24s

llvm-svn: 159525
diff --git a/llvm/test/Transforms/ConstProp/2006-11-30-vector-cast.ll b/llvm/test/Transforms/ConstProp/2006-11-30-vector-cast.ll
index be76783..4a93144 100644
--- a/llvm/test/Transforms/ConstProp/2006-11-30-vector-cast.ll
+++ b/llvm/test/Transforms/ConstProp/2006-11-30-vector-cast.ll
@@ -1,5 +1,5 @@
 ; RUN: opt < %s -constprop -S | \
-; RUN:   grep {i32 -1}
+; RUN:   grep "i32 -1"
 ; RUN: opt < %s -constprop -S | \
 ; RUN:   not grep zeroinitializer
 
diff --git a/llvm/test/Transforms/ConstProp/2006-12-01-TruncBoolBug.ll b/llvm/test/Transforms/ConstProp/2006-12-01-TruncBoolBug.ll
index e46a875..ce66c70 100644
--- a/llvm/test/Transforms/ConstProp/2006-12-01-TruncBoolBug.ll
+++ b/llvm/test/Transforms/ConstProp/2006-12-01-TruncBoolBug.ll
@@ -1,5 +1,5 @@
 ; RUN: opt < %s -instcombine -S | \
-; RUN:   grep {ret i1 false}
+; RUN:   grep "ret i1 false"
 define i1 @test() {
         %X = trunc i32 320 to i1                ; <i1> [#uses=1]
         ret i1 %X
diff --git a/llvm/test/Transforms/ConstProp/2006-12-01-bool-casts.ll b/llvm/test/Transforms/ConstProp/2006-12-01-bool-casts.ll
index 3c06693..71db421 100644
--- a/llvm/test/Transforms/ConstProp/2006-12-01-bool-casts.ll
+++ b/llvm/test/Transforms/ConstProp/2006-12-01-bool-casts.ll
@@ -1,7 +1,7 @@
 ; RUN: opt < %s -constprop -S | \
-; RUN:    grep {ret i32 -1}
+; RUN:    grep "ret i32 -1"
 ; RUN: opt < %s -constprop -S | \
-; RUN:    grep {ret i32 1}
+; RUN:    grep "ret i32 1"
 
 define i32 @test1() {
         %A = sext i1 true to i32                ; <i32> [#uses=1]
diff --git a/llvm/test/Transforms/ConstProp/2007-02-23-sdiv.ll b/llvm/test/Transforms/ConstProp/2007-02-23-sdiv.ll
index 721199f..75f58b5 100644
--- a/llvm/test/Transforms/ConstProp/2007-02-23-sdiv.ll
+++ b/llvm/test/Transforms/ConstProp/2007-02-23-sdiv.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llvm-dis | grep {global i32 0}
+; RUN: llvm-as < %s | llvm-dis | grep "global i32 0"
 ; PR1215
 
 @G = global i32 sdiv (i32 0, i32 -1)
diff --git a/llvm/test/Transforms/ConstProp/2007-11-23-cttz.ll b/llvm/test/Transforms/ConstProp/2007-11-23-cttz.ll
index a28c9b0..6d34cb1 100644
--- a/llvm/test/Transforms/ConstProp/2007-11-23-cttz.ll
+++ b/llvm/test/Transforms/ConstProp/2007-11-23-cttz.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -constprop -S | grep {ret i13 13}
+; RUN: opt < %s -constprop -S | grep "ret i13 13"
 ; PR1816
 declare i13 @llvm.cttz.i13(i13, i1)
 
diff --git a/llvm/test/Transforms/ConstProp/div-zero.ll b/llvm/test/Transforms/ConstProp/div-zero.ll
index f78a34f..a2c59d3 100644
--- a/llvm/test/Transforms/ConstProp/div-zero.ll
+++ b/llvm/test/Transforms/ConstProp/div-zero.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -instcombine -S | grep {ret i32 0}
+; RUN: opt < %s -instcombine -S | grep "ret i32 0"
 ; PR4424
 declare void @ext()