Implement special desugaring for numeric comparisons in PSI2IR

This introduces the following IR built-in functions required for proper
implementation of the number comparisons:

- ieee754Equals(T, T): Boolean,
    for each T in {Float?, Double?}

- less(T, T): Boolean
  lessOrEqual(T, T): Boolean
  greater(T, T): Boolean
  greaterOrEqual(T, T): Boolean
    for each T in {Int, Long, Float, Double}

compiler/testData/ir/irText/expressions/forWithImplicitReceivers.txt

@@ -57,11 +57,10 @@ FILE fqName:<root> fileName:/forWithImplicitReceivers.kt
       $receiver: VALUE_PARAMETER name:<this> type:IntCell flags:
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='hasNext() on IntCell: Boolean'
-          CALL 'GT0(Int): Boolean' type=kotlin.Boolean origin=GT
-            arg0: CALL 'compareTo(Int): Int' type=kotlin.Int origin=GT
-              $this: CALL '<get-value>(): Int' type=kotlin.Int origin=GET_PROPERTY
-                $this: GET_VAR 'this@hasNext: IntCell' type=IntCell origin=null
-              other: CONST Int type=kotlin.Int value=0
+          CALL 'greater(Int, Int): Boolean' type=kotlin.Boolean origin=GT
+            arg0: CALL '<get-value>(): Int' type=kotlin.Int origin=GET_PROPERTY
+              $this: GET_VAR 'this@hasNext: IntCell' type=IntCell origin=null
+            arg1: CONST Int type=kotlin.Int value=0
     FUN name:next visibility:public modality:OPEN <> ($this:IReceiver, $receiver:IntCell) returnType:Int flags:
       $this: VALUE_PARAMETER name:<this> type:IReceiver flags:
       $receiver: VALUE_PARAMETER name:<this> type:IntCell flags:
@@ -106,4 +105,3 @@ FILE fqName:<root> fileName:/forWithImplicitReceivers.kt
             BLOCK type=kotlin.Unit origin=null
               CALL 'println(Int): Unit' type=kotlin.Unit origin=null
                 message: GET_VAR 'i: Int' type=kotlin.Int origin=null
-