swift

6e8424ab - [CodeCompletion] Fix a crash in context type analysis for tuple expr

[CodeCompletion] Fix a crash in context type analysis for tuple expr When completing inside tuple expressions, the context tuple type may have fewer number of elements. In such cases, we cannot provide the expected type. rdar://problem/61668779 (cherry picked from commit 47e303a98dba5306899864a1122ddafd592b2384)