Adjust display column based on infix operator

Fixes #2

kotlin-power-assert/src/main/kotlin/com/bnorm/power/PowerAssertGenerator.kt

@@ -36,14 +36,6 @@ abstract class PowerAssertGenerator(
   private val file: IrFile,
   private val fileSource: String
 ) {
-
-//  private fun IrStatementsBuilder<*>.buildAssertThrow(
-//    callSource: String,
-//    title: IrExpression,
-//    subStack: MutableList<IrStackVariable>,
-//    callIndent: Int = 0
-//  ) = buildThrow(constructor, buildMessage(title, subStack, callSource, callIndent))
-
   abstract fun IrBuilderWithScope.buildAssertThrow(subStack: List<IrStackVariable>): IrExpression
 
   fun buildAssert(
@@ -107,7 +99,12 @@ abstract class PowerAssertGenerator(
 
       var startColumnNumber = file.info(expression).startColumnNumber
       if (expression is IrMemberAccessExpression) {
-        // TODO Is this the best way to fix indentation of infix operators?
+        val descriptor = expression.descriptor
+        if (descriptor is FunctionDescriptor && descriptor.isInfix) {
+          startColumnNumber += source.indexOf(descriptor.name.asString())
+        }
+
+        // TODO handle equality and comparison better?
         startColumnNumber += when (expression.origin) {
           IrStatementOrigin.EQEQ, IrStatementOrigin.EQEQEQ -> source.indexOf("==")
           IrStatementOrigin.EXCLEQ, IrStatementOrigin.EXCLEQEQ -> source.indexOf("!=")

kotlin-power-assert/src/test/kotlin/com/bnorm/power/test.kt

@@ -19,6 +19,7 @@ package com.bnorm.power
 import com.tschuchort.compiletesting.KotlinCompilation
 import com.tschuchort.compiletesting.SourceFile
 import org.intellij.lang.annotations.Language
+import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.junit.Test
 import java.lang.reflect.InvocationTargetException
 import kotlin.test.assertEquals
@@ -265,6 +266,23 @@ assert(text?.length?.minus(2) == 1)
        |     |       3
        |     5
        Hello
+""".trimIndent()
+    )
+  }
+
+  @Test
+  fun infixFunctions() {
+    assertMessage(
+      """
+fun main() {
+  assert(1 shl 1 == 4)
+}""",
+      """
+Assertion failed
+assert(1 shl 1 == 4)
+         |     |
+         |     false
+         2
 """.trimIndent()
     )
   }