Hi, Since JDK-8222852 the default String concat strategy aggressively folds string constants into prepender method handles, which means an expression like foo + bar and one like "x" + foo + "y" + bar + "z" will have similar shape, but take slightly different paths through generated code.
This patch extends the ImplicitStringConcatShapes test to add more shape variants with surrounding String constants, which should improve coverage and put a bit more stress on the implementation strategy. The changes of interest are in ImplicitStringConcatShapesTestGen - since that's what is used to generate ImplicitStringConcatShapes Bug: https://bugs.openjdk.java.net/browse/JDK-8245959 Webrev: http://cr.openjdk.java.net/~redestad/8245959/open.00/ Testing: tier1 Thanks! /Claes
