Fix spelling errors in comments.

I corrected misspelled comments in several crates.

src/libcore/str/pattern.rs

@@ -25,7 +25,7 @@ use super::CharEq;
 ///
 /// The trait itself acts as a builder for an associated
 /// `Searcher` type, which does the actual work of finding
-/// occurences of the pattern in a string.
+/// occurrences of the pattern in a string.
 pub trait Pattern<'a>: Sized {
     /// Associated searcher for this pattern
     type Searcher: Searcher<'a>;
@@ -72,7 +72,7 @@ pub enum SearchStep {
     /// Expresses that `haystack[a..b]` has been rejected as a possible match
     /// of the pattern.
     ///
-    /// Note that there might be more than one `Reject` betwen two `Match`es,
+    /// Note that there might be more than one `Reject` between two `Match`es,
     /// there is no requirement for them to be combined into one.
     Reject(usize, usize),
     /// Expresses that every byte of the haystack has been visted, ending

src/librbml/lib.rs

@@ -1061,7 +1061,7 @@ pub mod writer {
         }
 
         /// Returns the current position while marking it stable, i.e.
-        /// generated bytes so far woundn't be affected by relaxation.
+        /// generated bytes so far wouldn't be affected by relaxation.
         pub fn mark_stable_position(&mut self) -> u64 {
             let pos = self.writer.seek(SeekFrom::Current(0)).unwrap();
             if self.relax_limit < pos {

src/librustc_trans/trans/type_of.rs

@@ -264,7 +264,7 @@ pub fn arg_type_of<'a, 'tcx>(cx: &CrateContext<'a, 'tcx>, t: Ty<'tcx>) -> Type {
 }
 
 /// Get the LLVM type corresponding to a Rust type, i.e. `middle::ty::Ty`.
-/// This is the right LLVM type for an alloca containg a value of that type,
+/// This is the right LLVM type for an alloca containing a value of that type,
 /// and the pointee of an Lvalue Datum (which is always a LLVM pointer).
 /// For unsized types, the returned type is a fat pointer, thus the resulting
 /// LLVM type for a `Trait` Lvalue is `{ i8*, void(i8*)** }*`, which is a double

src/librustc_typeck/check/regionck.rs

@@ -225,7 +225,7 @@ impl<'a, 'tcx> Rcx<'a, 'tcx> {
     /// }
     /// ```
     ///
-    /// Here, the region of `b` will be `<R0>`.  `<R0>` is constrainted to be some subregion of the
+    /// Here, the region of `b` will be `<R0>`.  `<R0>` is constrained to be some subregion of the
     /// block B and some superregion of the call.  If we forced it now, we'd choose the smaller
     /// region (the call).  But that would make the *b illegal.  Since we don't resolve, the type
     /// of b will be `&<R0>.int` and then `*b` will require that `<R0>` be bigger than the let and

src/librustc_typeck/check/upvar.rs

@@ -294,7 +294,7 @@ impl<'a,'tcx> AdjustBorrowKind<'a,'tcx> {
 
     /// Indicates that `cmt` is being directly mutated (e.g., assigned
     /// to). If cmt contains any by-ref upvars, this implies that
-    /// those upvars must be borrowed using an `&mut` borow.
+    /// those upvars must be borrowed using an `&mut` borrow.
     fn adjust_upvar_borrow_kind_for_mut(&mut self, cmt: mc::cmt<'tcx>) {
         debug!("adjust_upvar_borrow_kind_for_mut(cmt={})",
                cmt.repr(self.tcx()));

src/libstd/io/stdio.rs

@@ -19,7 +19,7 @@ use io::{self, BufReader, LineWriter};
 use sync::{Arc, Mutex, MutexGuard};
 use sys::stdio;
 
-/// Stdout used by print! and println! macroses
+/// Stdout used by print! and println! macros
 thread_local! {
     static LOCAL_STDOUT: RefCell<Option<Box<Write + Send>>> = {
         RefCell::new(None)

src/libstd/sys/common/rwlock.rs

@@ -25,7 +25,7 @@ impl RWLock {
     /// thread to do so.
     ///
     /// Behavior is undefined if the rwlock has been moved between this and any
-    /// previous methodo call.
+    /// previous method call.
     #[inline]
     pub unsafe fn read(&self) { self.0.read() }
 
@@ -35,15 +35,15 @@ impl RWLock {
     /// This function does not block the current thread.
     ///
     /// Behavior is undefined if the rwlock has been moved between this and any
-    /// previous methodo call.
+    /// previous method call.
     #[inline]
     pub unsafe fn try_read(&self) -> bool { self.0.try_read() }
 
     /// Acquire write access to the underlying lock, blocking the current thread
     /// to do so.
     ///
     /// Behavior is undefined if the rwlock has been moved between this and any
-    /// previous methodo call.
+    /// previous method call.
     #[inline]
     pub unsafe fn write(&self) { self.0.write() }
 
@@ -53,7 +53,7 @@ impl RWLock {
     /// This function does not block the current thread.
     ///
     /// Behavior is undefined if the rwlock has been moved between this and any
-    /// previous methodo call.
+    /// previous method call.
     #[inline]
     pub unsafe fn try_write(&self) -> bool { self.0.try_write() }
 

src/libsyntax/ast.rs

@@ -893,7 +893,7 @@ pub enum Expr_ {
 
 /// The explicit Self type in a "qualified path". The actual
 /// path, including the trait and the associated item, is stored
-/// sepparately. `position` represents the index of the associated
+/// separately. `position` represents the index of the associated
 /// item qualified with this Self type.
 ///
 ///     <Vec<T> as a::b::Trait>::AssociatedItem