[FIR2IR] More accurate equals intrinsic for double/float types

compiler/testData/codegen/bytecodeText/ieee754/smartCastsForDouble.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +ProperIeee754Comparisons
-// IGNORE_BACKEND_FIR: JVM_IR
 fun equals5(a: Any?, b: Any?) = if (a is Double && b is Double?) a == b else null!!
 
 fun equals6(a: Any?, b: Any?) = if (a is Double? && b is Double) a == b else null!!

compiler/testData/codegen/bytecodeText/ieee754/smartCastsForFloat.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +ProperIeee754Comparisons
-// IGNORE_BACKEND_FIR: JVM_IR
 fun equals5(a: Any?, b: Any?) = if (a is Float && b is Float?) a == b else null!!
 
 fun equals6(a: Any?, b: Any?) = if (a is Float? && b is Float) a == b else null!!

compiler/testData/ir/irText/expressions/floatingPointComparisons/floatingPointEquals.fir.kt.txt

@@ -113,3 +113,4 @@ fun Float.test6fr(x: Any): Boolean {
     else -> false
   }
 }
+

compiler/testData/ir/irText/expressions/floatingPointComparisons/nullableFloatingPointEqeq.fir.ir.txt

@@ -94,7 +94,7 @@ FILE fqName:<root> fileName:/nullableFloatingPointEqeq.kt
                     if: CONST Boolean type=kotlin.Boolean value=true
                     then: CALL 'public open fun toDouble (): kotlin.Double declared in kotlin.Int' type=kotlin.Double origin=null
                       $this: GET_VAR 'val tmp_2: kotlin.Int? [val] declared in <root>.testDI2' type=kotlin.Int? origin=null
-              arg1: TYPE_OP type=kotlin.Double origin=IMPLICIT_CAST typeOperand=kotlin.Double
+              arg1: TYPE_OP type=kotlin.Double? origin=IMPLICIT_CAST typeOperand=kotlin.Double?
                 GET_VAR 'y: kotlin.Any? declared in <root>.testDI2' type=kotlin.Any? origin=null
           BRANCH
             if: CONST Boolean type=kotlin.Boolean value=true

compiler/testData/ir/irText/expressions/floatingPointComparisons/nullableFloatingPointEqeq.fir.kt.txt

@@ -39,7 +39,8 @@ fun testDI2(x: Any?, y: Any?): Boolean {
         EQEQ(arg0 = tmp2_safe_receiver, arg1 = null) -> null
         else -> tmp2_safe_receiver.toDouble()
       }
-    }, arg1 = y /*as Double */)
+    }, arg1 = y /*as Double? */)
     else -> false
   }
 }
+