Add core-lambda-stubs to classpath

Add core-lambda-stubs to the bootclasspath for modules with no
sdk_version or with sdk_version: "current", and to the classpath
for modules that specify a specific sdk_version number.  Use the
prebuilt sdk-core-lambda-stubs when using a prebuilt SDK.

Fixes compiling modules with lambdas against the SDK.

This reapplies I5e700f2dd86f1a6b84b7a55dd9bfe21a448d3fb6 with fixes
and tests for unbundled builds.

Bug: 80428539
Test: java_test.go
Change-Id: Ib7aaeebb93137270d7336a7293a08ed7064a3184
diff --git a/java/droiddoc.go b/java/droiddoc.go
index cda50f0..6c76262 100644
--- a/java/droiddoc.go
+++ b/java/droiddoc.go
@@ -293,7 +293,7 @@
 				ctx.AddDependency(ctx.Module(), libTag, []string{"ext", "framework"}...)
 			}
 		} else if sdkDep.useModule {
-			ctx.AddDependency(ctx.Module(), bootClasspathTag, sdkDep.module)
+			ctx.AddDependency(ctx.Module(), bootClasspathTag, sdkDep.modules...)
 		}
 	}
 
@@ -377,9 +377,9 @@
 
 	sdkDep := decodeSdkDep(ctx, String(j.properties.Sdk_version))
 	if sdkDep.invalidVersion {
-		ctx.AddMissingDependencies([]string{sdkDep.module})
+		ctx.AddMissingDependencies(sdkDep.modules)
 	} else if sdkDep.useFiles {
-		deps.bootClasspath = append(deps.bootClasspath, sdkDep.jar)
+		deps.bootClasspath = append(deps.bootClasspath, sdkDep.jars...)
 	}
 
 	ctx.VisitDirectDeps(func(module android.Module) {