Fix many typos in docs and comments

This commit corrects many typos found in scaladocs, comments and
documentation. It should reduce a bit number of PRs which fix one
typo.

There are no changes in the 'real' code except one corrected name of
a JUnit test method and some error messages in exceptions. In the case
of typos in other method or field names etc., I just skipped them.

Obviously this commit doesn't fix all existing typos. I just generated
in IntelliJ the list of potential typos and looked through it quickly.

1 files changed, 1 insertions, 1 deletions

diff --git a/spec/04-basic-declarations-and-definitions.md b/spec/04-basic-declarations-and-definitions.md
index aca1c63d22..65d79dd5f4 100644
--- a/spec/04-basic-declarations-and-definitions.md
+++ b/spec/04-basic-declarations-and-definitions.md
@@ -631,7 +631,7 @@ For every parameter $p_{i,j}$ with a default argument a method named
 expression. Here, $n$ denotes the parameter's position in the method
 declaration. These methods are parametrized by the type parameter clause
 `[$\mathit{tps}\,$]` and all value parameter clauses
-`($\mathit{ps}_1$)$\ldots$($\mathit{ps}_{i-1}$)` preceeding $p_{i,j}$.
+`($\mathit{ps}_1$)$\ldots$($\mathit{ps}_{i-1}$)` preceding $p_{i,j}$.
 The `$f\$$default$\$$n` methods are inaccessible for
 user programs.