Painless: Update More Methods to New Naming Scheme (#32305)

This finishes the updating the methods in the PainlessLookupBuilder to the new naming scheme. Mechanical change. Methods include the ones used for copying members in the inheritance hierarchy, calculating shortcuts, and setting the functional interface.

modules/lang-painless/src/main/java/org/elasticsearch/painless/lookup/PainlessLookup.java

@@ -30,30 +30,30 @@
 public final class PainlessLookup {
 
     public Collection<PainlessClass> getStructs() {
-        return javaClassesToPainlessStructs.values();
+        return classesToPainlessClasses.values();
     }
 
-    private final Map<String, Class<?>> painlessTypesToJavaClasses;
-    private final Map<Class<?>, PainlessClass> javaClassesToPainlessStructs;
+    private final Map<String, Class<?>> canonicalClassNamesToClasses;
+    private final Map<Class<?>, PainlessClass> classesToPainlessClasses;
 
-    PainlessLookup(Map<String, Class<?>> painlessTypesToJavaClasses, Map<Class<?>, PainlessClass> javaClassesToPainlessStructs) {
-        this.painlessTypesToJavaClasses = Collections.unmodifiableMap(painlessTypesToJavaClasses);
-        this.javaClassesToPainlessStructs = Collections.unmodifiableMap(javaClassesToPainlessStructs);
+    PainlessLookup(Map<String, Class<?>> canonicalClassNamesToClasses, Map<Class<?>, PainlessClass> classesToPainlessClasses) {
+        this.canonicalClassNamesToClasses = Collections.unmodifiableMap(canonicalClassNamesToClasses);
+        this.classesToPainlessClasses = Collections.unmodifiableMap(classesToPainlessClasses);
     }
 
     public Class<?> getClassFromBinaryName(String painlessType) {
-        return painlessTypesToJavaClasses.get(painlessType.replace('$', '.'));
+        return canonicalClassNamesToClasses.get(painlessType.replace('$', '.'));
     }
 
     public boolean isSimplePainlessType(String painlessType) {
-        return painlessTypesToJavaClasses.containsKey(painlessType);
+        return canonicalClassNamesToClasses.containsKey(painlessType);
     }
 
     public PainlessClass getPainlessStructFromJavaClass(Class<?> clazz) {
-        return javaClassesToPainlessStructs.get(clazz);
+        return classesToPainlessClasses.get(clazz);
     }
 
     public Class<?> getJavaClassFromPainlessType(String painlessType) {
-        return PainlessLookupUtility.canonicalTypeNameToType(painlessType, painlessTypesToJavaClasses);
+        return PainlessLookupUtility.canonicalTypeNameToType(painlessType, canonicalClassNamesToClasses);
     }
 }