New CI failure for 19-ea: TreeInfo.pathFor

[cpovirk]

#3192 encountered this failure:

Error:  /home/runner/work/error-prone/error-prone/core/src/main/java/com/google/errorprone/refaster/ExpressionTemplate.java:[251,29] cannot find symbol
Error:    symbol:   method pathFor(com.sun.tools.javac.tree.JCTree,com.sun.tools.javac.tree.JCTree.JCCompilationUnit)
Error:    location: class com.sun.tools.javac.tree.TreeInfo

i.e., here:

error-prone/core/src/main/java/com/google/errorprone/refaster/ExpressionTemplate.java

Line 251 in b603cff

JCTree parent = TreeInfo.pathFor(leaf, comp).get(1);

I assume this is the kind of thing that happens to us periodically when we dig into compiler internals and use Early Access releases.

Looks like the removal was openjdk/jdk@80cf59f