Simplify class object naming madness

- get rid of DescriptorNamer, always use descriptor.getName() instead
- delete AbstractClassResolver.getClassObjectName(), always use
  "<class-object-for-...>", except for the case of built-ins serialization
  (class object names should be replaced by "object" when writing files with
  serialized data for built-ins)
- delete NestedClassResolver.resolveClassObject(), always use the other method
  of this class instead

compiler/frontend/builtins/jet/ByteRange.object.kotlin_class

@@ -1,4 +1,4 @@
 † H2
 
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compiler/frontend/builtins/jet/CharIterator.kotlin_class

@@ -1,8 +1,8 @@
-& L2
+& K2
 
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+&0LB
 

compiler/frontend/builtins/jet/CharRange.object.kotlin_class

@@ -1,4 +1,4 @@
-† O2
+† N2
 
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compiler/frontend/builtins/jet/DoubleIterator.kotlin_class

@@ -1,8 +1,8 @@
-& _2
+& ^2
 
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+&0_B
 

compiler/frontend/builtins/jet/DoubleRange.object.kotlin_class

@@ -1,4 +1,4 @@
-† b2
+† a2
 
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compiler/frontend/builtins/jet/FloatIterator.kotlin_class

@@ -1,7 +1,7 @@
-& Ź
2
+& Ť
2
 
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-Z&0­
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+Z&0Ź
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compiler/frontend/builtins/jet/FloatRange.object.kotlin_class

@@ -1,4 +1,4 @@
-† Ż
2
+† ®
2
 
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+/ZЖ0IB
 

compiler/frontend/builtins/jet/IntIterator.kotlin_class

@@ -1,7 +1,7 @@
-& Ě
2
+& Ë
2
 
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-Z&0Í
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+Z&0Ě
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compiler/frontend/builtins/jet/IntRange.object.kotlin_class

@@ -1,4 +1,4 @@
-† Ď
2
+† Î
2
 
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+3ZĆ0IB