Java: Accept reduced precision from no longer nesting completions in YieldCompletions.

Author: aschackmull

java/ql/test-kotlin1/library-tests/controlflow/basic/strictDominance.expected

@@ -562,5 +562,4 @@
 | Test.kt:121:4:121:9 | ... -> ... | Test.kt:122:12:122:16 | ... -> ... |
 | Test.kt:121:4:121:9 | ... -> ... | Test.kt:122:12:122:16 | <Expr>; |
 | Test.kt:121:4:121:9 | ... -> ... | Test.kt:123:8:123:10 | { ... } |
-| Test.kt:121:9:121:9 | <Expr>; | Test.kt:123:8:123:10 | { ... } |
 | Test.kt:122:12:122:16 | ... -> ... | Test.kt:122:12:122:16 | <Expr>; |