8177933: Stackoverflow during compilation, starting jdk-9+163
Summary: Avoid extra method call in Attr.attribTree
Reviewed-by: vromero

8176714: javac is wrongly assuming that field JCMemberReference.overloadKind has been assigned to
Reviewed-by: mcimadamore

8154180: Regression: stuck expressions do not behave correctly
Summary: ArgumentAttr should not cache stuck trees
Reviewed-by: vromero

8148128: Regression: array constructor references marked as inexact
Summary: Missing check in constructor reference stuckness check
Reviewed-by: vromero

8139836: Can't use super::x method reference when x is protected
Summary: Javac incorrectly diasllows reference to a protected method from a super class in method reference expressions.
Reviewed-by: mcimadamore

8137269: Add better support for local caching in ArgumentAttr
Summary: ArgumentAttr should support local caches when results of speculative attribution might be thrown away
Reviewed-by: jlahoda

8078093: Severe compiler performance regression Java 7 to 8 for nested method invocations
Summary: Add infrastructure to avoid combinatorial explosion of method argument attributions
Reviewed-by: jlahoda, vromero, dlsmith