Be more strict about the operand for the array type in BitcodeReader

Summary: Bug found with AFL fuzz.

Reviewers: rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9016

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235596 91177308-0d34-0410-b5e6-96231b3b80d8

test/Bitcode/invalid.test

@@ -73,3 +73,8 @@ RUN: not llvm-dis -disable-output %p/Inputs/invalid-abbrev-fixed-size-too-big.bc
 RUN:   FileCheck --check-prefix=HUGE-ABBREV-OP %s
 
 HUGE-ABBREV-OP: Fixed or VBR abbrev record with size > MaxChunkData
+
+RUN: not llvm-dis -disable-output %p/Inputs/invalid-array-type.bc 2>&1 | \
+RUN:   FileCheck --check-prefix=ARRAY-TYPE %s
+
+ARRAY-TYPE: Array element type can't be an Array or a Blob