git: openjdk/jdk11u-dev: 8290705: StringConcat::validate_mem_flow asserts with "unexpected user: StoreI"

[Goetz Lindenmaier]

Changeset: fba01e8b
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-10-04 18:35:14 +0000
URL:       https://git.openjdk.org/jdk11u-dev/commit/fba01e8ba53c707a955515d180f37958c07b653a

8290705: StringConcat::validate_mem_flow asserts with "unexpected user: StoreI"

Backport-of: 61e072d11c8e0cb5879bb733ed1fdd2144326bfd

! src/hotspot/share/opto/stringopts.cpp
+ test/hotspot/jtreg/compiler/stringopts/SideEffectBeforeConstructor.jasm
+ test/hotspot/jtreg/compiler/stringopts/TestSideEffectBeforeConstructor.java