[MERGE #2150 @meg-gupta] Fix opeq assert firing in x86
[MERGE #2150 @meg-gupta] Fix opeq assert firing in x86

Merge pull request #2150 from meg-gupta:fixtypeassert

Debug asserts that fire when operand sizes differ for mov and opeq
instructions were added recently. Fix a missing change that fires this
assert.

Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore