Fixing the longstanding and important Issue #637. I'm glad this one got got.

lib/lexer.js

@@ -254,10 +254,10 @@
         if (noNewlines) {
           return this.suppressNewlines();
         }
-        this.outdebt = 0;
+        diff = size - this.indent + this.outdebt;
-        diff = size - this.indent;
         this.token('INDENT', diff);
         this.indents.push(diff);
+        this.outdebt = 0;
       } else {
         this.outdentToken(this.indent - size, noNewlines);
       }

src/lexer.coffee

@@ -209,10 +209,10 @@ exports.Lexer = class Lexer
       return @newlineToken indent
     else if size > @indent
       return @suppressNewlines() if noNewlines
-      @outdebt = 0
+      diff = size - @indent + @outdebt
-      diff = size - @indent
       @token 'INDENT', diff
       @indents.push diff
+      @outdebt = 0
     else
       @outdentToken @indent - size, noNewlines
     @indent = size

test/test_blocks.coffee

@@ -8,11 +8,10 @@ ok results.join(' ') is '1 4 9'
 # Chained blocks, with proper indentation levels:
 results = []
 
-counter = {
+counter =
   tick: (func) ->
     results.push func()
     this
-}
 
 counter
   .tick ->
@@ -53,3 +52,17 @@ obj
   )
 
 ok result is 3
+
+
+# Test newline-supressed call chains with nested functions.
+obj  =
+  call: -> this
+func = ->
+  obj
+    .call ->
+      one two
+    .call ->
+      three four
+  101
+
+ok func() is 101

test/test_if.coffee

@@ -96,3 +96,16 @@ catch e
 x = 1
 result = x + if false then 10 else 1
 ok result is 2
+
+
+# If/else indented within an assignment.
+func = ->
+  a =
+    if false
+      3
+    else
+      5
+  101
+  a
+
+ok func() is 5