Install notion of diagnostic handler into PNaCl bitcode readers.

test/NaCl/Bitcode/invalid.test

 ; Check when separator(,) not followed by a value.
 
 RUN: not pnacl-bcfuzz -bitcode-as-text %p/Inputs/bad-separator.tbc \
 RUN:    -output - 2>&1 | FileCheck --check-prefix=BAD-SEP %s
 
 BAD-SEP: Value expected after separator, but not found
 
 ; Check that comparison operator of branch is i1.
 
 RUN: pnacl-bcfuzz -bitcode-as-text %p/Inputs/bad-branch-compare.tbc \
 RUN:    -output - | not pnacl-bcdis | FileCheck --check-prefix=BAD-BC-BR-CMP %s
 
 BAD-BC-BR-CMP:      br i32 %p0, label %b1, label %b2;
 BAD-BC-BR-CMP-NEXT: Branch condition not i1
 
 RUN: pnacl-bcfuzz -bitcode-as-text %p/Inputs/bad-branch-compare.tbc \
-RUN:     -output - | not pnacl-thaw -verbose-parse-errors -o /dev/null 2>&1 \
+RUN:     -output - | not pnacl-thaw -o /dev/null 2>&1 \
 RUN:               | FileCheck --check-prefix=BAD-BR-CMP %s
 
 BAD-BR-CMP: Type of branch condition not i1. Found: i32
 
 ; Tests that we recognize wrong abbreviation index bitsize in a blockinfo block,
 ; and properly exit with an appropriate error message.
 ; Tests issue: https://code.google.com/p/nativeclient/issues/detail?id=4215
 RUN: not pnacl-bcfuzz -bitcode-as-text %p/Inputs/bad-blockinfo-numbits.tbc \
 RUN:     -output - 2>&1 | FileCheck --check-prefix=BAD-BLKINFO_BITS %s
 
 BAD-BLKINFO_BITS: Numbits entry for abbreviations in blockinfo block not 2.
 BAD-BLKINFO_BITS: Failed to write bitcode
 
 ; Check that we catch error where line doesn't begin with a record code.
 
 RUN: not pnacl-bcfuzz -bitcode-as-text %p/Inputs/bad-code.tbc \
 RUN:    -output - 2>&1 | FileCheck --check-prefix=BAD-CODE %s
 
 BAD-CODE: Bitcode record doesn't begin with a record code