Implement basic use-site scopes and override mapping

This commit also introduces separate scope processors:
processFunctionsByName and processPropertiesByName, in addition to
existing processClassifiersByName

Ad-hock call resolver starts to discover ambiguities, which leads
to some ambiguity problems in MPP tests with deep supertype hierarchy

Related to KT-29636

idea/testData/fir/multiModule/mppMembers/jvm/jvm.txt

@@ -13,8 +13,8 @@ FILE: jvm.kt
         public constructor(): super<R|B|>()
 
         public final function test(): R|kotlin/Unit| {
-            R|/A.foo|()
-            R|/A.bar|()
+            <Ambiguity: foo, [/A.foo, /A.foo]>#()
+            <Ambiguity: bar, [/A.bar, /A.bar]>#()
         }
 
     }

idea/testData/fir/multiModule/mppSuperTypes/jvm/jvm.txt

@@ -22,7 +22,7 @@ FILE: jvm.kt
         public constructor(): super<R|B|>()
 
         public final function test(): R|kotlin/Unit| {
-            R|/A.foo|()
+            <Ambiguity: foo, [/A.foo, /A.foo]>#()
             <Unresolved name: bar>#()
             <Unresolved name: baz>#()
         }
@@ -33,8 +33,8 @@ FILE: jvm.kt
 
         public final function test(): R|kotlin/Unit| {
             R|/A.foo|()
-            R|/X.bar|()
-            R|/Y.baz|()
+            <Ambiguity: bar, [/X.bar, /X.bar]>#()
+            <Ambiguity: baz, [/Y.baz, /Y.baz]>#()
         }
 
     }