KT-4568: Created the ConvertNegatedBooleanSequence intention. This intention takes an expression of the form !a &&,|| !b &&,|| ... and converts it to the DeMorgan equivalent !(a &&,|| b ...).

idea/testData/intentions/convertNegatedBooleanSequence/conjunctionOfThreeNegations.kt

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return <caret>!a && !b && !c
+}

idea/testData/intentions/convertNegatedBooleanSequence/conjunctionOfThreeNegations.kt.after

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return !(a || b || c)
+}

idea/testData/intentions/convertNegatedBooleanSequence/conjunctionOfTwoNegations.kt

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return <caret>!a && !b
+}

idea/testData/intentions/convertNegatedBooleanSequence/conjunctionOfTwoNegations.kt.after

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return !(a || b)
+}

idea/testData/intentions/convertNegatedBooleanSequence/disjunctionOfTwoNegations.kt

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return <caret>!a || !b
+}

idea/testData/intentions/convertNegatedBooleanSequence/disjunctionOfTwoNegations.kt.after

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return !(a && b)
+}

idea/testData/intentions/convertNegatedBooleanSequence/doubleParenthesizedExpression.kt

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean, c: Boolean) {
+    return <caret>!(a && b) || !(a || c)
+}

idea/testData/intentions/convertNegatedBooleanSequence/doubleParenthesizedExpression.kt.after

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean, c: Boolean) {
+    return !((a && b) && (a || c))
+}

idea/testData/intentions/convertNegatedBooleanSequence/inapplicableMixedOperators.kt

@@ -0,0 +1,4 @@
+// IS_APPLICABLE: false
+fun foo(a: Boolean, b: Boolean, c: Boolean) {
+    return <caret>!a && !b || !c
+}

idea/testData/intentions/convertNegatedBooleanSequence/inapplicableMixedSequence.kt

@@ -0,0 +1,4 @@
+// IS_APPLICABLE: false
+fun foo(a: Boolean, b: boolean) {
+    return <caret> !a && b
+}

idea/testData/intentions/convertNegatedBooleanSequence/inapplicableSingleExpression.kt

@@ -0,0 +1,4 @@
+// IS_APPLICABLE: false
+fun foo(a: Boolean) {
+    return !a
+}

idea/testData/intentions/convertNegatedBooleanSequence/negatedFunction.kt

@@ -0,0 +1,11 @@
+fun bar1() {
+    return true
+}
+
+fun bar2() {
+    return false
+}
+
+fun foo() {
+    return <caret>!bar1() && !bar2()
+}

idea/testData/intentions/convertNegatedBooleanSequence/negatedFunction.kt.after

@@ -0,0 +1,11 @@
+fun bar1() {
+    return true
+}
+
+fun bar2() {
+    return false
+}
+
+fun foo() {
+    return !(bar1() || bar2())
+}

idea/testData/intentions/convertNegatedBooleanSequence/parenthesizedConjunctionOfTwoNegations.kt

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return (<caret>!a && !b)
+}

idea/testData/intentions/convertNegatedBooleanSequence/parenthesizedConjunctionOfTwoNegations.kt.after

@@ -0,0 +1,3 @@
+fun foo(a: Boolean, b: Boolean) {
+    return !(a || b)
+}