Typofixes in comments

compiler/main/DriverPipeline.hs

@@ -794,7 +794,7 @@ getOutputFilename stop_phase output basename dflags next_phase maybe_location
 
 
 -- | The fast LLVM Pipeline skips the mangler and assembler,
--- emiting object code dirctly from llc.
+-- emitting object code directly from llc.
 --
 -- slow: opt -> llc -> .s -> mangler -> as -> .o
 -- fast: opt -> llc -> .o

compiler/main/HscMain.hs

@@ -533,7 +533,7 @@ makeSimpleDetails hsc_env tc_result = mkBootModDetailsTc hsc_env tc_result
                    --------------------------------
 
 It's the task of the compilation proper to compile Haskell, hs-boot and core
-files to either byte-code, hard-code (C, asm, LLVM, ect) or to nothing at all
+files to either byte-code, hard-code (C, asm, LLVM, etc.) or to nothing at all
 (the module is still parsed and type-checked. This feature is mostly used by
 IDE's and the likes). Compilation can happen in either 'one-shot', 'batch',
 'nothing', or 'interactive' mode. 'One-shot' mode targets hard-code, 'batch'

compiler/typecheck/TcRnTypes.hs

@@ -10,7 +10,7 @@ module.
 All the monads exported here are built on top of the same IOEnv monad. The
 monad functions like a Reader monad in the way it passes the environment
 around. This is done to allow the environment to be manipulated in a stack
-like fashion when entering expressions... ect.
+like fashion when entering expressions... etc.
 
 For state that is global and should be returned at the end (e.g not part
 of the stack mechanism), you should use a TcRef (= IORef) to store them.