[PhaseOrdering] vector-trunc.ll - use -passes="default<O2>" to allow DOS to correctly evaluate the RUN command

Necessary for running update_test_checks.py on windows

Author: RKSimon

llvm/test/Transforms/PhaseOrdering/vector-trunc-inseltpoison.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -O2                   -S -data-layout="e" < %s | FileCheck %s
-; RUN: opt -passes='default<O2>' -S -data-layout="e" < %s | FileCheck %s
+; RUN: opt -passes="default<O2>" -S -data-layout="e" < %s | FileCheck %s
 
 define <4 x i16> @truncate(<4 x i32> %x) {
 ; CHECK-LABEL: @truncate(

llvm/test/Transforms/PhaseOrdering/vector-trunc.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -O2                   -S -data-layout="e" < %s | FileCheck %s
-; RUN: opt -passes='default<O2>' -S -data-layout="e" < %s | FileCheck %s
+; RUN: opt -passes="default<O2>" -S -data-layout="e" < %s | FileCheck %s
 
 define <4 x i16> @truncate(<4 x i32> %x) {
 ; CHECK-LABEL: @truncate(