netty-shaded: Use compile instead of runtime dep in pom for core

This is essentially re-adding grpc#5901 after its behavior was "reverted"
in grpc#8242. At the time grpc-core was the only dependency, so this change
only applies to grpc-core to make it a tiny bit easier to swap to
runtime scope in the future.

netty/shaded/build.gradle

@@ -53,6 +53,19 @@ publishing {
  artifact javadocJar
  artifact sourcesJar
 
+ // Avoid confusing error message "class file for
+ // io.grpc.internal.AbstractServerImplBuilder not found"
+ // (https://github.com/grpc/grpc-java/issues/5881). This can be
+ // removed after https://github.com/grpc/grpc-java/issues/7211 is
+ // resolved.
+ pom.withXml {
+ asNode().dependencies.'*'.findAll() { dep ->
+ dep.artifactId.text() == 'grpc-core'
+ }.each() { core ->
+ core.scope*.value = "compile"
+ }
+ }
+
  // shadow.component() is run after the main build.gradle's withXml
  pom.withXml {
  asNode().dependencies.'*'.findAll() { dep ->